Finding the Fourth Proportional to 1,426.79, 2,139.14 and 963.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.79 : 2,139.14 = 963.42 : x
2. Step 2: Convert to fraction form
   1,426.79/2,139.14 = 963.42/x
3. Step 3: Cross multiply
   1,426.79x = 2,139.14 × 963.42
4. Step 4: Simplify right side
   1,426.79x = 2,060,888.52
5. Step 5: Solve for x
   x = 2,060,888.52/1,426.79
6. Step 6: Final answer
   x = 1,444.42